<template>
   <div class="bottom-nav">
      <ul>
        <li v-for="(list,index) in navConfig" :class="{active:index===currentIndex}" @click="changeNav(list,index)">
          <a>
            <i :class="list.icon"></i>
            <div>{{list.name}}</div>
          </a>
        </li>
      </ul>
    </div>
</template>
  
<script>
import qs from 'qs'

let { index } = qs.parse(location.search.substring(1))

export default {
  data() {
    return {
      currentIndex: +index|0,
      navConfig: [
        { name: '有赞', icon: 'icon-home', href: 'index.html' },
        { name: '分类', icon: 'icon-category', href: 'category.html' },
        { name: '购物车', icon: 'icon-cart', href: 'cart.html' },
        { name: '我', icon: 'icon-user', href: 'member.html' }
      ]
    }
  },
  methods: {
    changeNav(list, index) {
      location.href = `${list.href}?index=${index}`
    }
  }
}
</script>
  
<style lang="scss" scoped>
.bottom-nav {
  position: fixed;
  width: 100%;
  height: 50px;
  bottom: 0;
  background-color: #fff;
  z-index: 999;
  -o-border-image: url(https://b.yzcdn.cn/v2/image/wap/border-line-2.png) 2
    stretch;
  border-image: url(https://b.yzcdn.cn/v2/image/wap/border-line-2.png) 2 stretch;
  border-top: 2px solid #e5e5e5;
}

@media only screen and (-webkit-min-device-pixel-ratio: 1.5),
  only screen and (min--moz-device-pixel-ratio: 1.5),
  only screen and (min-device-pixel-ratio: 1.5) {
  .bottom-nav {
    border-top-width: 1px;
  }
}

.bottom-nav ul {
  position: relative;
  height: 100%;
  zoom: 1;
}

.bottom-nav ul:after {
  content: '';
  display: table;
  clear: both;
}

.bottom-nav li {
  display: block;
  float: left;
  width: 25%;
  height: 100%;
}

.bottom-nav a {
  display: block;
  width: 100%;
  height: 100%;
  padding-top: 8px;
  text-align: center;
  font-size: 10px;
}

.bottom-nav [class^='icon-'] {
  display: block;
  width: 22px;
  height: 22px;
  margin: auto;
  margin-bottom: 4px;
  background-position: 50%;
  background-repeat: no-repeat;
  background-size: 100% auto;
}

.bottom-nav .icon-home {
  background-image: url('');
}

.bottom-nav .icon-category {
  background-image: url('');
}

.bottom-nav .icon-cart {
  background-image: url('');
}

.bottom-nav .icon-user {
  background-image: url('');
}

.bottom-nav .active a {
  color: #ff6366;
}

.bottom-nav .active .icon-home {
  background-image: url('');
}

.bottom-nav .active .icon-category {
  background-image: url('');
}

.bottom-nav .active .icon-cart {
  background-image: url('');
}

.bottom-nav .active .icon-user {
  background-image: url('');
}
</style>
